Free building-code calculators for architects, engineers, and designers.
Calculate occupant load under IBC Table 1004.5 — select the space function, enter floor area, and get the occupant count instantly. Business 150 gross, assembly 7/15 net, classroom 20 net, and more.
Upload a plan set and InstaPreView flags likely code issues — occupant load, egress, and more — before you submit to the AHJ.